I think giving an opinion is fair but please know going on a test drive is not going to give anyone enough data to make a true determination. One fact is drive a sportline in a bad road with and without the DHP it will speak for it self.

I totally agree. Tracks are a very different environment than public roads. Any car that is driven both on the track and on the street is going to be a compromise and unless you are a totally masochist a dedicated track car is not something you will want to drive on the street. Cockpit adjustable suspensions are a great step forward toward making a car that is suited to a wide variety of road surfaces.